Apparatus for treating milk and other liquids.



FORNANDBR. APPARATUS FOR TREATING MILK AND OTHER LIQUIDS.

APPLICATION FILED MAR. 10, 1910.

L01 3,594, Patented Jan. 2,1912.

2 SHEETS-SHEET 1.

FORNANDER. APPARATUS FOR TREATING MILK AND OTHER LIQUIDS.

APPLICATION FILED MARJO, 1910.

Patent ed Jan. 2, 1912.

2 SHEBTSSHEET 2.

' aoiasee I 45 vide means barren ermine rarainrorrron;

ALFRED roaimunna, or New roan, n. a, assreuoa T mum OiLS nxraac'rme corarm, or new roan, iv. an, a coaroaariou or NEW roan.

APPARATUS FOR TREATING MILK AND OTHER LIQUIDS.

To'cZZ whom it may concern:

Be it known that I, ALFRED FORNANDER, a

citizen of the United States, and aresidentof the borough of Manhattan of the city of New York, in the county and State of New York, have invented certain new and useful Improvements in Apparatus for Treating Milk and other Liquids, of which the following is a specification, reference being had to the accompanying drawings, forming a part hereof.

The invention relates more particularly to improvements in machines of the type shown and .describedin Letters'Patent of the United States, No. 917,008, dated April 48,1909, in which type of machine the milk orotherliquid to be treated is fed between two disks with opposed roughened faces separated by a very small space and which are adapted to rotate at a high speed in opposite directions or at least to have considerable relative movement with respect to each other. I have discovered that the distance between the faces of the disks has considerable to do with the effect produced upon the milk or other liquid introduced into the machine, so that by varying this distance within certain limits, I am enabled to get different results. I find, for instance,

that with the faces of the disks exceedingly near together, sayabout one two-thousandths of an inch apart, I can produce an emulsion of the milk orcream which is run through a machine of the type in question;

'35 and that by moving the disks slightly 40 cordingly, is to provide a mechanism of the type in question in which the faces of the disks may be accurately and readily adjusted with respect to each other.

Another ob'e'ct of the invention is to proor maintaining the disks in their adjusted relation with respect to each other. In the use of these machines, it has developed that the partial vacuum produced between the. disks by centrifugal action tends to draw the faces of the disks Specification of Letters Patent.

Application filed March lO, 1910. Serial No. 5d 8,45.

- Patentede ain 2, 39312.

(which are separated by an exceedingly thin space) into contact with each other and thus to interfere considerably with the smooth and proper running of the machine. To overcome this difficulty the faces of the disks, or at least one of the disks, are formed so as to permit the milkto feed down as freely as possible into the space between the disks and thus minimize the tendency to the formation of a vacuum. 7

In the drawings, wherea convenient and practical embodiment of the invention is illustrated, Figure. 1 is a view thereof in elevation. Figs. 2 and 3 are detail views in section, upon an enlarged scale, of the disk members- Figs. 4 and 5 are plan views of the faces of said disk members respectively, and, Figs. 6 and 7 are detail views of a hand wheel forming a portion of the adjusting mechanism for one of the disks.

The apparatus illustrated inthe drawing is supported upon a column a through the medium of a bracket 1), the end of the latter receiving the upper end of the casting or disk forming member 0 which is retained or held therein by a set screw 01 threadedin the end of the arm. The lower disk f is secured to a driving shaft which, when the disks are assembled in operative position, passes up through the disk 6 and member 0, in

which it has suitable bearings, and is supported bya driving pulley it fast thereon and which is provided with suitable bearings for rotatingwagainst a hand wheel 2'. The latter is loosely threaded upon't'hje upper end of the casting 1, so that by moving the hand wheel one way or the other, the lower disk f may be raised or lowered, as desired, through the medium of thepulley h and the shaft -q. The hand wheel is provided with notches a in which 'a-pawl Z is adapted to fit for the purpose, as will be understood, of retaining the parts in their adjusted position, the pawl being pivoted to an oil cup member m. -Moreover, the shaft 9 may be provided with an additional pulley n, fast thereto, so that the shaft may be driven by two motors arranged 180 degrees apart for the purpose of balancing the eifect of the driving belts. y

I 7 Referring now to the faces of the disks 6 and f, it will be seen that these faces are roughened, the roughening being indicated in a general way at o in Figs. 2 and 5 inelusive. This roughening may be formed by providing small recesses in the faces of the disks, said recesses referably having sharp edges. These roug ened surfaces act upon the liquid being treated, but, as wasv stated above, it has been found in ractice that while these rough surfaces satlsfactorily perform their functions upon the liquid being treated, some means must be provided in order to prevent the formation of a partial vacuum between the disks operating under the conditions specified. I have found that a satisfactory solution of this difiiculty may be had, in forming in one of the disks concentric grooves, as 72, (Figs. 3 and 5) which are preferably continuous or circu-' lar as shown. This permits a certain quantity of liquid to collect therein and acts as a check to its too rapid discharge from the.

peripheries of the disks by the centrifugal action. Moreover, I have found also that by hollowing out the face of one of the disks at the center, as that of the lower disk f, and by having the sides of this hollow slo e gradually toward the periphery of the disk, the-action is much improved. It is preferable, also, to provide radial channels r within this hollow. v p

The milk or other liquid is fed into the space between the disks through an 0 ening s in the casting a and'is dischar ed into said space around the shaft g. T e milk or other liquid is delivered through a tube t'which is provided with a valve u and valve regulating means '2) in order that the uantity of the milk or other liquid delivered to the apparatus maybe suitably controlled. The liquid is delivered from between the disks into a shell within which the lower disk rotates, and which shell comprises the upper disk e and a detachable hood to which is formed with a restricted end through which the liquid may be finally discharged into a suitable receiving ail.

It will be understood that various 0 anges may be made in the embodiment of the improvements shown and described herein without departing from the spirit of the invention.

I claim as my invention:

1. In an apparatus for treatin milk and other liquids, the combination 0 two disks mounted face to face, at least one of said disks having a groove in its face and at least one of the disks having roughened portions upon its face. a

2. In an apparatus for treatin milk and other liquids, the combination 0 two disks mounted face to face, one of said disks having a concentric groove and roughened portions in its face.

3. In an apparatus for-treat milk .and other liquids, the combination 0 two disks mounted face to face, and .adapted to have movement relative to each other, one of iaid disks having a circular groove in its ace.

. 4. In an apparatus for treatin milk and other liquids, thecombination 0 two disks each having a roughened face opposed to the other and one of said disks having a circular groove in its face.

5. In an apparatus for treatin milk and other liquids, the combination 0 two disks mounted face to face, one of said disks being hollowed out at the center.

6. In an apparatus for; treatin milk and other liquids, the combination 0 two disks mounted face to face, one of said disks being formed with 'a central hollow having sides sloping toward the periphery, and said sides being provided with radial grooves.

each having a roughened face opposed to 95 the other, one of said disks havlng a circular groove in its face, and one of said disks being mounted to rotate. I

9. In an apparatus for treating milk and other liquids, the combination 0 two disks each having a roughened face opposed to the other, and one of said disks having a circular groove in its face and being mounted to rot-ate.

10. In an apparatus for treating-milk and and other liquids, the combination of two disks mounted face to face, one of which is stationary, means to, feedliquid through the central portion of the stationary disk to the -s ace between the disks, and a driving sha t secured to the other of the disks and passing through thestationary disk.

11. In an apparatus for treating milk and other liquids, the combination of a shell, a disk formed in the upper part of the shell, a disk facing the first named disk revoluble relative to the first mentioned disk, a shaft secured to the second named disk and passing through the first named disk, and means to adjust the two disks with respect to each, other.'

12. In an apparatus for treatinglmilk and other liquids, the combination of a shell consisting of a disk forming member at the top and a detachable hood below, a disk parallel to said member, said disk and member having roughened o posing faces, acircular groove in one o the faces, a shaft connected to one of the disks and passing through the other disk, and means to ad: 189

other liquids, the combination of two disks just the shaft longitudinally to regulate the This specification signed and witnessed distance between said member and disk. this 29th day of January, A.4D., 1910.

13. In an apparatus for treating milk and ALFRED FORNANDER.

each having a roughened face opposed to the other, and one of said disks having two circular grooves formed in its face, and a shaft for driving it.

Signed in the presence of- LUCIUS' E. VARNEY, G. MCGRANN. 

